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Thread: Color modes RGB CMYK
20-07-2012, 11:52 AM #1
Color modes RGB CMYK
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Would be grateful for any suggestions for a beginner!
Last edited by Toon; 20-07-2012 at 12:10 PM.
20-07-2012, 03:40 PM #2
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Not sure what you're asking really?Before you judge a man, walk a mile in his shoes; after that, who cares?! He's a mile away and you've got his shoes!
20-07-2012, 06:11 PM #3
In other words:
I designed a logo in Adobe Illustrator. Let's assume that it is a cyan rectangle (C100 M0 Y0 K0) and the document is in CMYK mode. I'm writing a CI book in which I'd like to attach colour specifications, like here:
So what do I do next to have both CMYK and RGB coordinates? Because RGB 83 104 149 is not recalculated CMYK 75 35 0 7.
Last edited by ihnacy; 20-07-2012 at 07:07 PM.
21-07-2012, 12:38 AM #4
There is no exact reference for an RGB to CMYK conversion because the CMYK colorspace is much smaller than an RGB ... so they will always look different.
A good example is when you see that something is 'Out of Gamut'. That means that there aren't enough colors in the CMYK spectrum to convert properly to RGB.
So my answer is that it doesn't matter because there is no direct conversion that will work exactly.Christina Wilkinson
21-07-2012, 08:47 AM #5
Thanks. So perhaps you could explain me this: when I have a document in Illustrator that is in CMYK color mode and I choose Cyan (that is C100 M0 Y0 K0) I get RGB as follows: R0 G158 B224. But on the other hand when I create a new document and set it to RGB color mode and pick RGB color 0 158 224 (same as before) I get "Out of Gamut" warning. Why? Shouldn't the colour be recalculated to CMYK as 100 0 0 0?
21-07-2012, 08:28 PM #6
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